CBSE|Angle Subtended by an Arc of a Circle#!#Ncert Discussion of Ex. 10.5

The angle subtended by an arc of a circle at the centre is double the angle subtended by it any point on the remaining part of the circle.

The radius of a circle is 14cms. The angle subtended by an arc of the circle at the centre is 45^(@) . Find the length of the arc.

What is the angle subtended at the centre of a circle of radius 10 cm by an arc of length 5 pi cm?

Find the angle subtended at the centre of a circle of radius 'a' by an arc of length (a pi/4)

Find the angle subtended at the centre of a circle of radius 5cm by an arc of length (5 pi/3)cm.

Theorem 10.8 : The angle subtended by an arc at the centre is double the angle subtended by it at any point on the remaining part of the circle.

Angle subtend by an arc at center is double the angle subtend b it at any point on remaining part OF circle||Angle is a semi circle is a 90 ||Example ||Congurent arc|| Equal arc||Cyclic quadrilateral

The length of a minor arc is 2/9 of the circumference of the circle. Write the measure of the angle (in degrees) subtended by the arc at the centre of the circle.

A chord of a circle is equal to the radius of the circle find the angle subtended by the chord at a point on the monor arc and also at a point on the major arc.

A chord of a circle is equal to the radius of the circle.Find the angle subtended by the chord at a point on the minor arc and also at a point on the major arc.